Big 12: Griffin Gilbert

FORT WORTH, Texas -- TCU quarterback Trevone Boykin left Saturday's game against visiting Kansas State late in the first quarter and headed into the locker room shortly after with an apparent injury to his throwing arm.

Boykin threw an incomplete pass to tight end Griffin Gilbert and immediately trotted to the sideline while holding his arm.

He was replaced by Matt Brown. TCU missed a field goal later on the drive and trails No. 2 Kansas State, 10-0, early in the second quarter.

Boykin was 3-of-6 passing for 24 yards and rushed four times for 21 before leaving the game.

UPDATE (8:11 p.m. ET): Boykin returned to the game with just under five minutes to play in the second quarter.